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Multilayer body and container

a multi-layer body and container technology, applied in the field of multi-layer bodies and packaging materials, can solve the problems of insufficient adhesion prevention effect of the material of patent documents 1 and 2, and achieve excellent and lasting non-adhesive properties, and good water repellency and non-adhesive properties. good and lasting

Active Publication Date: 2012-05-17
TOYO ALUMINIUM KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0054]The multilayer body and packaging material of the first invention can exhibit good water repellency and non-adhesive properties (or soil resistance). In particular, detachment of the hydrophobic oxide fine particles can be effectively reduced or prevented and good water repellency and non-adhesive properties can be effectively maintained when particulate filler comprising at least one of an organic component and an inorganic component is included in a layer containing a thermoplastic resin (herein sometimes called a “thermoplastic resin layer”).

Problems solved by technology

However, the following problem remains even if a packaging material satisfies all of these requirements.
When the contents adhere to the packaging material it is difficult to use all of the contents, resulting in waste.
However, the materials of Patent Documents 1 and 2 do not provide sufficient adherence prevention effects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

examples

[0216]The first through fourth inventions are explained in more detail below using examples and comparative examples. However, the scope of the present invention is not limited by these examples.

examples of first invention

Examples 1-1 to 1-9 and Comparative Example 1-1

[0217]Samples were prepared by causing hydrophobic oxide fine particles to attach to multilayer bodies having thermoplastic resin layers. Specifically, the various samples were prepared as follows.

(1) Preparation of Multilayer Bodies

example 1-1

, Comparative Example 1-1

[0218]One side of paper having a basis weight of 55 g / m2 was printed and OP (overprint) coated, while the other side was bonded with a polyurethane dry laminate adhesive (abbreviated as “D”; dried weight 3.5 g / m2) to the surface of a 16 μm-thick aluminum-deposited polyethylene terephthalate film (abbreviated as Al-deposited PET). A heat seal lacquer (“lacquer”; principal components 160 parts by weight polyester resin+10 parts by weight acrylic resin+40 parts by weight solvent (mixed toluene+MEK solvent)) was coated as a thermoplastic resin layer on the polyethylene terephthalate film of this bonded material to a dried weight of about 3 g / m2 (drying conditions 150° C.×10 seconds). A multilayer body composed of “OP / printing / paper / D / Al-deposited PET / lacquer” was obtained in this way.

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Abstract

The present invention provides a multilayer body, a packaging material and a container, each of which can maintain excellent water repellent properties and non-adhesive properties. Specifically, the present invention describes a non-adhesive multilayer body wherein hydrophobic oxide fine particles having an average primary particle diameter of 3-100 nm adhere to at least a part of the outermost layer.

Description

TECHNICAL FIELD[0001]The present invention relates to a multilayer body and container, and, in particular, to the technology described below.[0002]The present invention relates to a multilayer body and a packaging material. It relates in particular to a multilayer body for use in tablecloths, napkins, aprons, table covers, floor mats, wall coverings, wallpaper, labels, release paper, tags, chair covers, water resistant sheets, umbrellas, ski wear, construction materials, bed covers, shoe surface materials, shoe covers, waterproof clothing, water repellant films, water repellant sheets and the like, and to a packaging material for use in packaging foods, drinks, medicines, cosmetics, chemical products and the like.[0003]The present invention also relates to a non-adhesive container, and to a manufacturing method therefor. In particular, it relates to a container having superior non-adherence of the contents, and to a manufacturing method therefor. More specifically, it relates to a n...

Claims

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Application Information

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IPC IPC(8): B65D51/00C09J7/02B32B1/06B05D3/02B32B3/26B32B7/12B05D7/22B32B5/16B32B1/02
CPCB32B27/06Y10T428/259B32B27/20B32B2255/10B32B2255/20B32B2255/26B32B2255/28B32B2307/73B32B2307/74B32B2435/02B32B2439/00C08J7/02C08J2323/06C08J2323/12C08J2325/06B32B2310/0418B32B2038/168B32B2038/0052B32B38/164B32B38/00B32B2405/00B65D43/02Y10T428/25Y10T428/254Y10T428/13B32B27/10Y10T428/249986Y10T428/249983B32B5/16B65D65/40B32B1/00
Inventor SEKIGUCHI, TOMONOBUYAMAMOTO, MASASHIYAMADA, KAZUNORIKANNO, SHUHEI
Owner TOYO ALUMINIUM KK
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